I'm think there is a likelihood of noise being injected into the house wiring from the inverter. A quick search of the web suggests this also.
A lot of opinions but here are a couple.
I recently added 10 recessed lights to my home. Since the addition, when the new lights are on, the digital clock on the coffee pot gains about 5 minutes per hour. Is this coincidence and only a problem with the time keeping componentry of the clock, or could the clock be a symptom of a serious electrical issue?
http://en.allexperts.com/q/Electrical-Wiring-Home-1734/2010/4/digital-clock-gains-time.htm
"The problem with electronic clocks is that, if they are poorly designed, they can have much less noise immunity than their mechanical counterparts. The clock on the classroom wall won't care about a 10 microsecond spike on the power line, but a "red" clock may see it as an extra cycle. Lots of spikes, and you have a clock running amok. The new streetlights were probably injecting noise onto the power lines. (Notice that the clock always runs fast---a noise source can't remove cycles, only add them.)
http://ask.metafilter.com/75780/Time-Glitch
I doubt whether it is a serious problem but it would be interesting to talk to other users with the same model inverter to see if they have noticed a similar problem.
The coffee pot example is probably from a lighting switch mode supply inducing noise into the AC line.
If it is the only AC clock affected then it is possible there are aging capacitors that a failing to filter the noise.
Posted Tuesday 20 Apr 2010 @ 10:35:00 am from IP
#